Screen frame



March 25 1924.

F. MUSHALL SCREEN FRAME Filed July 17. 1922 INVENTOR- 737 1 mmmx WWW v60 ATTORNEYS Patented Mar. 25, 1924.

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FRANK MUSHALL, OE CHICAGO, ILLINOIS.

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Application filed July 17, 1922.

T 0 aZZ whom it may concern:

Be it known that I, FRANK MUSHALL, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Screen Frames, of which the following is a full, clear, and exact description.

My invention relates to improvements in screen frames, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide an improvement over that form of the device shown in my co-pending application, Serial No. 514:,677, filed November 12, 1921, and allowed June 16, 1922. In said prior application there was disclosed, a screen frame which had a movable side that adapted the screen to fit openings of various sizes. Inthe present form of the device, I have shown the screen as being provided with two movable sides, these sides being connected to handles, whereby the screen may be foreshortened by moving the handles toward each other.

A further object of my invention is to provide a device of the character described in which the movable ends are provided with grooves, whereby the screen may be used in place of the ordinary screens.

A further object of my invention is to provide a device of the type. described in which the movable portions are protected by metal strips, thereby preventing insects from passing through the window.

Other objects and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this invention in which Figure 1 is a front elevation of the device.

Figure 2 is a section along the line 2-2 of Figure 1,

Figure 3 is a section along the line 3--3 of Figure 1, and

Figure 4 is a plan view of portion of the device.

In carrying out my invention, 1 provide a frame 1, which comprises side members 2 and end members 3. Thesemembers are secured to each other in any well known manner, and form an opening 4, the opening having a screen 5 disposed there across.

Serial No. 575,570.

As clearly shown in Figure 1, movable sides 6 are secured to the frame 1 by guidercds 7, these rods being turned adjacent to their ends as at 8, so as to provide stops to the rods. The compression springs 9 are mounted on the rods and are adapted to yieldingly hold the sides 6 from the frame 1. From this construction it will be observed that the sides 6 may be moved toward the frame 1. The sides 6 are further guided in their movementby plates 10 and 11. The plates 10 are secured to the members 3 by nails 12 or the like, (see Figure 1). The plates 11 are secured to the sides 6 by nails 13. The plates 10 and 11 extend between the frame 1, and the sides 6, and thus effectually close the space between the sides and the frame.

The plates 10 have slots 14 therein, through which screws 15 extend. Washers 16 are carried by the screws and bear against the outer sides of the plates 10. The screws 16 further aid in keeping the sides 6 parallel with the members 3 as the sides are moved toward or away from the frame 1. Small metal pieces 17' are secured to the sides 6 by a screw 15, and are adapted to close the slots 14. In this manner all of the openings which exist between the sides 6 and the frame 1 are effectually closed, thereby preventing insects or the like from entering the window.

In the same manner as the sides 6 are provided with screws 15, the members 3 are provided with guide screws 18. These screws are disposed in slots 19 of the strips 11, and function in the same manner as the screws 15. It will be noted from Figure 1, that the guide-rods 7 are disposed in openings 20 in members 3. As heretofore stated, these rods are adapted to move inwardly when the sides 6 are moved toward the frame 1, but are prevented from moving beyond the predetermined distance in an outward direction by the stops 8.

The sides 6 are adapted to be manually moved toward the frame 1, when the screen is inserted in a window opening. This construction is also clearly shown in Figure 1, and it will be noted that screws 21 are carried by the sides 6, and are slidably disposed in openings 22. The handle 23 is secured to the screws 21, and bears against the inner surface of the member 3 when the side 6 is in its further-most position. It is obvious from this construction that by merely moving the handles 28 toward each other the sides 6 are moved toward the frame 1 against the tension of the springs 9, whereupon the screen may be readily inserted in the window opening.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. It will be noted from Figure 2 that the sides 6 have grooves 24 in their outer edges, these grooves being adapted to receive the ordinary guide-strips which are provided in windows. In placing the device in a window, the handles 23 are moved toward each other, whereupon the sides 6 are moved toward the frame 1 against the tension of the springs 9. When the screen has been positioned so as to align the slots 24: with the strips (not shown), the handles 23 are released, whereupon the springs 9 will move the sides 6 into engagement with the sides of the window, and cause the slots or grooves 24 to receive the guide-strips of the window.

In Figure 4, I have shown a modified form of the device, this form being identical to the form heretofore described, except that the screen is provided with only one movable side. The handle 28, which is disposed adjacent to the side of the frame 1, which does not have a movable side 6, is readily secured to the member 3 by means of screws 25. It will also be noted that the member 3, which does not have the side 6 disposed adjacent thereto is provided with a groove 26, which takes the place of the groove 24 in the side 6. This screen can be assembled in the window in the same manner as the form heretofore described, except that only one of the handles 23 is moved inwardly instead of both handles being moved inwardlyp The metal strips 10 are bent inwardlyat 27, (see Figure 3), so as to enclose the openings between the frame 1 and the sides 6. In this manner the metal strips 10 effectually close the front and sides of the opening between the frames and the sides 6. It will be therefore apparent that when the screen is disposed in the window, it provides no openings through which insects may pass. The device is very simple in operation and construction, and is thoroughly eflicient for the purpose intended.

I claim:

1. A screen comprising a frame, two oppositely disposed parallel sides movably carried said frame, pins rigidly secured to said sides and being slidably mounted in said frame, springs for moving said sides away from said frame, said pins having heads thereon to determine the outward movement of said sides with respect to said frame, screws carried by said sides and being slidably disposed in said frame, handles secured to the inner ends of said screws and being adapted to move said sides inwardly against the tension of the springs, and metal plates covering the space between said frame and sides, said plates being bent at right angles at their ends to extend transversely across the top and bottom edges of said frame, said sides having grooves adapted to receive the guide strips of the window.

2. A screen comprisinga frame, oppositely disposed parallel'sides movably carried by said frame, springs for moving said sides away from said frame, means rigidly secured to said sides for limiting the movement thereof with respect to the frame, guide means carried by said sides and being slidably disposed in said frame, handles secured to said guide means for moving said sides inwardly against, the tension of the springs, and metal plates covering the space between said frame and sides, said plates being bent at right angles at their ends to extend transversely across the top and bottom edges of said frame, said sideshaving grooves adapted to receive the guide strips of the window.

FRANK MUSHALL. 

